"…(3) Subject to this section, an inspector may, for the purpose of enquiring into the tax liability of any person ("the taxpayer"), by notice in writing require any other person to deliver to the inspector or, if the person to whom the notice is given so elects, to make available for inspection by a named officer of the Board, such documents as are in his possession or power and as (in the inspector's reasonable opinion) contain, or may contain, information relevant to any tax liability to which the taxpayer is or may be, or may have been, subject, or to the amount of any such liability; and the persons who may be required to deliver or make available a document under this subsection include the Director of Savings. … (6) The persons who may be treated as "the taxpayer" for the purposes of this section include a company which has ceased to exist and an individual who has died; ... (7) Notices under subsection (1) or (3) above are not to be given by an inspector unless he is authorised by the Board for its purposes; and— ( a ) a notice is not to be given by him except with the consent of a General or Special Commissioner; and ( b ) the Commissioner is to give his consent only on being satisfied that in all the circumstances the inspector is justified in proceeding under this section. (8) Subject to subsection (8A) below, a notice under subsection (3) above shall name the taxpayer with whose liability the inspector (or, where section 20B(3) below applies, the Board) is concerned. (8A) If, on an application made by an inspector and authorised by order of the Board, a Special Commissioner gives his consent, the inspector may give such a notice as is mentioned in subsection (3) above but without naming the taxpayer to whom the notice relates; but such a consent shall not be given unless the Special Commissioner is satisfied— ( a ) that the notice relates to a taxpayer whose identity is not known to the inspector or to a class of taxpayers whose individual identities are not so known; ( b ) that there are reasonable grounds for believing that the taxpayer or any of the class of taxpayers to whom the notice relates may have failed or may fail to comply with any provision of the Taxes Acts; ( c ) that any such failure is likely to have led or to lead to serious prejudice to the proper assessment or collection of tax; and ( d ) that the information which is likely to be contained in the documents to which the notice relates is not readily available from another source. (8B) A person to whom there is given a notice under subsection (8A) above may, by notice in writing given to the inspector within thirty days after the date of the notice under that subsection, object to that notice on the ground that it would be onerous for him to comply with it; and if the matter is not resolved by agreement, it shall be referred to the Special Commissioners, who may confirm, vary or cancel that notice."
"Further, the solicitors say that the Revenue are not asking for documents relating to a class of taxpayers whose individual identities are not known to the Revenue (s 20(8A)(a)) because the class will include persons whose identities are already known to the Revenue. They argue that 'Unless they are removed, [the Financial Institution] will know any notice to be invalid in relation to some thousands of customers ostensibly caught by it; but the Financial Institution will not know which, with the result that it cannot know in respect of any customer whether it has a duty to disclose or not.' In their latest memorandum they clarify this by saying that known to the Revenue means known in this context, ie in the context of seeking an order for disclosure under s 20(8A). There are 9,289 customers of the Financial Institution with non-UK accounts whose identities are known to the Revenue, which the solicitors say shows that the evidence includes irrelevant names. It is important to note that the paragraph immediately following, s 20(8A)(b), requires that there are reasonable grounds for believing that any of the class of taxpayers may have failed (or may fail) to comply with any provision of the Taxes Acts. In spite of the solicitor's clarification of their argument I still consider that there is a logical flaw in it. If the class includes any members of the class who may have failed to comply, it must equally include other persons who have complied, whose identity will obviously be known to the Revenue. Their reading effectively rewrites paragraph (b) so as to require that there are reasonable grounds for believing that all members of the class may have failed to comply with their tax obligations. The inclusion as members of the class of persons who the Revenue know have complied with their tax obligations cannot possibly have been intended by Parliament to invalidate the whole of the notices. Taxpayer confidentiality prevents the Revenue from disclosing to the Financial Institution the names of the customers known to them."